An alleged serial pervert was busted after he tried to sexually attack two women, including a 16-year-old girl, in less than 30 minutes, police sourc­es said Thursday.

Garrick Morgan, 25, was charged with attempted rape after he forced the teen to the ground outside the UN International School on the East Side Tuesday, police said.

She managed to fight off the creep.

Twenty-five minutes earlier, Morgan allegedly groped a 30-year-old woman in front of NYU’s College of Dentistry.

He allegedly committed the attacks after being released without bail in three similar incidents earlier this year, cops said.